scholarly journals Effect of hydrolytic reagents on the recovery of proteinaceous amino acids from edible mushroom.

1984 ◽  
Vol 37 (6) ◽  
pp. 558-560
Author(s):  
Sachiko GOTOH ◽  
Masateru AOYAMA ◽  
Hiroki ABE
Keyword(s):  
Amino Acids ◽  
Edible Mushroom

scholarly journals AMINO ACID PROFILE OF A BASIDIOMYCETOUS EDIBLE MUSHROOM-LENTINUS SAJOR-CAJU

2017 ◽  
Vol 9 (9) ◽  
pp. 252
Author(s):  
Lata . ◽  
Narender Singh Atri
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Content ◽  
Standard Technique ◽  
Edible Mushroom ◽  
Amino Acid Profile ◽  
Total Amino Acid ◽  
Isoleucine Leucine ◽  
Total Amino Acid Content ◽  
Basidiomycetous Mushroom

Objective: In this paper amino acid profile of Lentinus sajor-caju (Fr.) Fr., a basidiomycetous mushroom has been investigated.Methods: During the evaluation 15 amino acids (lysine, aspartic acid, serine, threonine, glutamic acid, cysteine, glycine, alanine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine and histidine) were determined from the dried sample of Lentinus sajor-caju by following the standard technique of biochemistry using ion-exchange chromatography.Results: The total amino acid content has been evaluated at 18.82 g/100g. Amongst the evaluated amino acids, exogenous amino acid lysine (6.66 g/100g) is preponderantly present in comparison to all other amino acids. The essential amino acid (EAA) index (44.64%) and biological value (BV=36.93%) has also been determined for the examined sample.Conclusion: Lentinus sajor-caju (Fr.) Fr. is a potential source of quality protein with a substantial proportion of exogenous and endogenous amino acids.

scholarly journals Tambir : Jamur Alam Papua yang Berpotensi sebagai Jamur Konsumsi

2018 ◽  
Vol 9 (1) ◽  
pp. 18-24
Author(s):  
Supeni Sufaati ◽  
Vita Purnamasari ◽  
Verena Agustini ◽  
Suharno Suharno
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
High Performance ◽  
Crude Protein ◽  
Nutrient Content ◽  
Edible Mushroom ◽  
Essential Amino Acids ◽  
Good Alternative ◽  
Local People ◽  
Alternative Protein

Fungi has several role for humankind, one of them is as food. The potency of wild edible mushrooms as a source of nutrition still need to be explored to support national food security. The aim of this study was to determine the composition of nutrient content of wild edible mushroom called Tambir that commonly be consumed as alternative food by local people in Jayapura, Papua. Samples were collected from the traditional market nearby Uncen campus in Waena, Jayapura, Papua. Micro Kjeldahl method was used to analyze the crude protein content, hexane-gravimetry for lipid, spectrophotometry for carbohydrate, and high performance liquid chromatography (HPLC) for amino acid composition. The results showed that this mushroom has 15.74 % crude protein, 2.59 % lipid, 50.17 % carbohydrate and 8 essential amino acids. The chemical value of those eight essential amino acids were more than 100 that means this mushroom has no amino acid limitation. Therefore, Tambir could be a good alternative protein source for local people. Key words: fungi, proteins, local knowledge, Tambir, Papua.

A 13 C-NMR Study of Exudation and Storage of Carbohydrates and Amino Acids in the Ectomycorrhizal Edible mushroom Cantharellus cibarius

Mycologia ◽  
2002 ◽  
Vol 94 (2) ◽  
pp. 190 ◽  
Author(s):  
J. Ignacio Rangel-Castro ◽  
Eric Danell ◽  
Philip E. Pfeffer
Keyword(s):  
Amino Acids ◽  
Edible Mushroom ◽  
Nmr Study ◽  
And Storage ◽  
C Nmr

scholarly journals Ergosterol and Amino Acids Contents of Culinary-Medicinal Shiitake from Various Culture Conditions

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 78
Author(s):  
Ibrahima Diallo ◽  
Sylvie Morel ◽  
Manon Vitou ◽  
Alain Michel ◽  
Sylvie Rapior ◽  
...  
Keyword(s):  
Amino Acids ◽  
High Performance ◽  
Chemical Constituents ◽  
Edible Mushroom ◽  
Culture Conditions ◽  
Bioactive Molecules ◽  
Freeze Dried ◽  
Growing Conditions ◽  
Layer Chromatography ◽  
French Region

Lentinus edodes (shiitake) is an edible mushroom cultivated and marketed due to its nutritional and medicinal values. L. edodes is appreciated for its unique fragrant taste and its high dietetic potential. Its bioactive molecules explain its interest as medicinal mushroom. This mushroom can be grown using various substrates and culture conditions. Thus, our work focused on the comparison of chemical constituents (i.e., amino acids and ergosterol) of L. edodes fruit bodies cultivated in organic or nonorganic growing conditions in the French region of Occitanie. Sequential extraction was performed on freeze-dried fungal materials. Quantitative evaluation of amino acids was done using high performance thin layer chromatography. Assay of ergosterol was carried out using high performance liquid chromatography. For both ergosterol and amino acids, differences were highlighted between extracts (depending on the nature of the solvents) and between growing conditions (organic versus nonorganic). Extracts from organically produced shiitake contained the highest content of ergosterol, isoleucine and alanine. In conclusion, this work demonstrated that culture conditions influence the chemical profile of L. edodes as far as ergosterol and amino acids are concerned, which could improve nutrition and human health.

Chemical profile and amino acids composition of edible mushroom

2015 ◽  
Vol 8 (3) ◽  
pp. 675 ◽  
Author(s):  
Neerja Rana ◽  
Devina Vaidya ◽  
Surabhi Sharma ◽  
Nilakshi Chauhan
Keyword(s):  
Amino Acids ◽  
Edible Mushroom ◽  
Chemical Profile ◽  
Amino Acids Composition

Homochirality as the Signature of Extra-Terrestrial Life

1997 ◽  
Vol 161 ◽  
pp. 505-510
Author(s):  
Alexandra J. MacDermott ◽  
Laurence D. Barron ◽  
Andrè Brack ◽  
Thomas Buhse ◽  
John R. Cronin ◽  
...  
Keyword(s):  
Amino Acids ◽  
Protein Synthesis ◽  
Optical Rotation ◽  
Physical Origin ◽  
Natural Choice ◽  
Rosetta Mission ◽  
Terrestrial Life ◽  
Subsurface Layers ◽  
Solar System Bodies ◽  
Origin Of Homochirality

AbstractThe most characteristic hallmark of life is its homochirality: all biomolecules are usually of one hand, e.g. on Earth life uses only L-amino acids for protein synthesis and not their D mirror images. We therefore suggest that a search for extra-terrestrial life can be approached as a Search for Extra- Terrestrial Homochirality (SETH). The natural choice for a SETH instrument is optical rotation, and we describe a novel miniaturized space polarimeter, called the SETH Cigar, which could be used to detect optical rotation as the homochiral signature of life on other planets. Moving parts are avoided by replacing the normal rotating polarizer by multiple fixed polarizers at different angles as in the eye of the bee. We believe that homochirality may be found in the subsurface layers on Mars as a relic of extinct life, and on other solar system bodies as a sign of advanced pre-biotic chemistry. We discuss the chiral GC-MS planned for the Roland lander of the Rosetta mission to a comet and conclude with theories of the physical origin of homochirality.

Hydrogen Cyanide Polymers from the Impact of Comet P/Shoemaker-Levy 9 on Jupiter

1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman
Keyword(s):  
Amino Acids ◽  
Solar System ◽  
Hydrogen Cyanide ◽  
Nitrogen Heterocycles ◽  
Laboratory Studies ◽  
Heterogeneous Solids ◽  
The Many ◽  
Comet Halley ◽  
The Impact ◽  
By Products

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.

Methionine-Specific Staining of Collagen

1982 ◽  
Vol 40 ◽  
pp. 294-295
Author(s):  
E.M. Kuhn ◽  
K.D. Marenus ◽  
M. Beer
Keyword(s):  
Amino Acids ◽  
Collagen Fibers ◽  
Type Iii Collagen ◽  
Type I ◽  
Electron Microscopic ◽  
Good Correspondence ◽  
Specific Staining ◽  
Type Iii ◽  
Different Types ◽  
Sulfur Containing

Fibers composed of different types of collagen cannot be differentiated by conventional electron microscopic stains. We are developing staining procedures aimed at identifying collagen fibers of different types.Pt(Gly-L-Met)Cl binds specifically to sulfur-containing amino acids. Different collagens have methionine (met) residues at somewhat different positions. A good correspondence has been reported between known met positions and Pt(GLM) bands in rat Type I SLS (collagen aggregates in which molecules lie adjacent to each other in exact register). We have confirmed this relationship in Type III collagen SLS (Fig. 1).

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